Cycle attachment.



. A. A. BAMFORD.

CYCLE ATTACHMENT.

APPLICATION FILED MAY 20. 1912.

1,068,835. Patented July 29, 1913.

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A. A, BAMPORD.

' CYCLE ATTACHMENT. APPLICATION FILED MAY 20, 1912.

1,068,835. Patented July 29, 1913.

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COLUMBIA PLANOGRAF'H c0.. WASHINGTON. IL c.

UTEn sTATEs Agr ARTHUR A. BAIVIFORD, OF CHICAGO, ILLINOIS.

CYCLE ATTACHMENT.

Specification of Letters Patent.

Patented July 29, 1913.

Application filed May 20, 1912. Serial No. 698,569.

To all whom it may concern:

Be it known that I, ARTHUR A. BAM- This invention relates to bicycles ormo torcycles, and particularly to a wheeled supporting attachmenttherefor, the object of the invention being to provide a novel sideattachment which is designed to support the bicycle or motorcycle in asubstantially erect position while standing or running and to prevent itfrom skidding or tipping, and which is also designed and adapted tooperate with the cushioning elements of the cycle frame to take up andabsorb all shocks and jars and make the bicycle or motorcycle easyrunning.

A further object of the invention is to provide an attachment of thecharacter described which may be used to carry a passenger or luggage,and which may be adapted for attachment to any ordinary make of bicycleor motorcycle frame.

The invention consists of the features of construction, combinationandarrangement of parts hereinafter fully described and claimed,reference being hadto the accompanying drawings, in which Figure 1 is aside elevation of a motorcycle equipped with my attachment. Fig. 2 isatop plan view of the same. Fig. 3 is a rear elevation of the motorcyclewith the attachment applied. Fig. .4 is a vertical transverse section onthe line 4.4 of Fig. 2. Fig. 5 is a detail section on the line 5-5 ofFig. 1.

In the present instance, I have shown the application of my invention toa motorcycle having a main frame 1, which carries the front supportingand steering wheel 2, the driving motor 3 and the operators seat 4, anda rear frame section 5 which carries the rear driving and supportingwheel 6,

tions is controlled by an interposed cushion.

ing spring 8 of the leaf type, the said spring being composed preferablyof two sections united at their lower ends and fixed to the main framesection and having their upper ends divided and respectively connectedwith the main and rear frame sections.

The attachment comprises a frame 9 including spaced horizontal tubes 10connected at their front and rear ends to each other, an upperlongitudinal tube 11 conv nected with the tubes 10 by front, rear andside braces 12, 13 and 14. Extending f0rwardly from the tubes 10 and 11are tubes 15 forming an attaching portion which is bent inwardly at anoblique angle to the main portion of the frame of the attachment. Thetubes 10 support a transverse axle 16 on which is mounted a supportingwheel 17.

The attaching portion of the frame of the attachment is connected withthe upper front portion of the main frame section 1 of the motorcycle bymeans of a ball and socket joint 18, or other suitable flexibleconnection, which will permit the attachment and motorcycle to haverelative vertical play. The innermost tube 10 and upper tube 11 of theframe of the attachment are respectively connected with the main framesection 1 of the motorcycle and the countershaft 7 by a pair ofsuperposed link bars or tubes 19 and 19 which are respectively securedat their extremities to the attachment frame and said motorcycle framesection 1 and countershaft by ball and socket joints 20, thus permittingthe rear portions of the motorcycle and supporting frame to haverelative vertical motion and to assume diflerent angles with relation toeach other. The supporting device and motorcycle are thus universallyjointed together, so that in passing over irregularities of surface themotorcycleand supporting frame may travel at .versal joints are carriedby clips 21 which are secured in any suitable manner to the frame tubes,and these clips carry snap hooks 22 which are adapted to adjustablyengage short chain sections 23 at the ends of a pair of cushioning andsustaining springs 24.- and 25. If desired, however, the springs may bedirectly connected with the clips or secured to the parts in any othersuitable manner. The springs 24 and 25 are arranged diagonally and incrossed relation between the rear end of the frame of the attachmentandthe portion of the motorcycle frame to which said attachment is coupled,and are also disposed between the link bars or tubes, so that thesprings will oppose sufficient resistance to relative play or motionbetween the supporting device and motor cycle to normally maintain thesame in an erect position, while permitting the attachment andmotorcycle to yieldingly assume angular positions, the springs thusoperating to control the yielding motions of the link bars, as will bereadily understood.

It will be seen that when the device is applied to the motorcycle asdescribed, a wheeled support is arranged at one side of the motorcyclewhich normally sustains it in an upright position and is at the sametime adapted to yield vertically so that the wheels of the motorcycleand attachment may travel at different levels in passing overirregularities of surface or obstructions, the springs taking up allshocks and jars, so that but little strain or vibration will betransmitted-to the motor cycle frame. The attachment also permits themotorcycle to incline in either direction to a limited extent intraveling around curves while at the same time sustaining it againstskidding motion or any tendency to turn over beyond the center ofgravity, and fall. It will, of course, be understood that the attachmentmay be employed as a luggage carrier or be provided with a seat fortransporting a passenger thus increasing its utility and efficiency.

While in the present instance I have shown the attachment applied to amotorcycle having a yielding or cushioning frame structure of thecharacter described, it will, of course, be understood that it may beapplied to any existing type of bicycle or motorcycle or constructed soas to form a permanent part of the mortorcycle when built.

Such changes and modifications as are necessary for its application inthese particulars are held to fall within the spirit and scope of theappended claims.

The term bicycle in the claims is intended to include manually ormotor-driven vehicles of this character.

I claim 1. The combination with a motorcycle, of a wheeled support atone side of the motorcycle, said support being pivotally connected atits front end to the motorcycle frame, pivotal connections between thetop and bottom portions of the rear ends of the motorcycle and support,and cushioning springs disposed in crossed relation between the rearends of said frames and connected with the top and bottom portionsthereof for limiting the pivotal play of the pivotal connections. 2. Thecombination with a motorcycle, of a wheeled support arranged at one sidethereof, said support including a frame universally jointed to the frameof the motorcycle at its forward end, universally jointed connectionsbetween the top and bottom portions of the rear end of the frame of thesupport and the motorcycle frame, and crossed cushioning springsdisposed between said connections and connected with the top and bottomportions of the frames for limiting the pivotal play of saidconnections.

3. The combination with a motorcycle, of a wheeled support arranged atone side thereof, said support being pivotally con-' nected at itsforward end to the motorcycle frame, superposed parallel memberspivotally connecting the top and bottom portions of the frame andsupport with each other, and crossed cushioning springs arranged betweensaid members and connected with the top and bottom portions of themotorcycle frame and support.

4. The combination with a bicycle, of a support arranged at one sidethereof and comprising a wheeled frame, said frame being universallyjointed at its forward end to the bicycle frame, links extending betweenand universally jointed to the rear end of the frame of the support andthe bicycle frame, and crossed cushioning springs coupled to themotorcycle frame and support for controlling and limiting the relativepivotal play thereof.

5. The combination with a bicycle, of a support at one side thereofcomprising a wheeled frame having an angularly bent forward enduniversally jointed to the bicycle frame, superposed links universallyjointed to the frame of the supportand to the bicycle frame, and crossedcushioning springs coupled to the motorcycle frame and support tocontrol and limit the relative pivotal play thereof.

In testimony whereof I affix my signature in presence of two witnesses.

ARTHUR A. BAMFORD. Witnesses C. G. HINES, BENNETT S. JoNEs.

Copies of this patent may be obtained for five cents each, by addressingthe l Gommissioner of Patents,

